EP 0895613 A1 19990210 - ELECTRONIC STILL CAMERA HAVING MECHANICALLY MOVABLE CCD TO AFFECT FOCUS
Title (en)
ELECTRONIC STILL CAMERA HAVING MECHANICALLY MOVABLE CCD TO AFFECT FOCUS
Title (de)
ELEKTRONISCHE KAMERA MIT EINEM MECHANISCH BEWEGBAREN CCD ZUR SCHARFSTELLMODIFIKATION
Title (fr)
APPAREIL PHOTO ELECTRONIQUE A CCD SE DEPLACANT MECANIQUEMENT POUR MODIFIER LA FOCALISATION
Publication
Application
Priority
- US 9703946 W 19970314
- US 61514296 A 19960314
Abstract (en)
[origin: WO9734194A1] An electronic still camera (30) is disclosed which adjusts focus to an object image by mechanically moving an electronic image sensor (20) within the camera. The electronic sensor (20) is moved along an optical path of camera following the focal plane of the image so as to produce a focused image. The electronic still camera comprises an adjustment means (68, 72) which moves the sensor (20) along the optical path relative to the at least one lens (12) such as to focus an image of the subject. In the preferred embodiment, the adjustment means is a lead screw (68) driven by a stepper motor. The stepper motor rotates the lead screw (68) such that the lead screw moves in and out relative to the lens (12), and substantially parallel to the optical path. The lead screw mechanically contacts (72) the sensor (20) so as to push the sensor forward toward the lens (12) or to relieve pressure on the sensor such that spring action (80) can push the sensor back away from the lens. In this way, the sensor is being moved relative to the lens thus focusing the image in the electronic still camera.
IPC 1-7
IPC 8 full level
G02B 7/28 (2006.01); H04N 5/232 (2006.01)
CPC (source: EP US)
G02B 7/28 (2013.01 - EP US); G03B 3/04 (2013.01 - EP US); G03B 13/32 (2013.01 - EP US); H04N 23/67 (2023.01 - EP US)
Citation (search report)
See references of WO 9734194A1
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
WO 9734194 A1 19970918; DE 69721245 D1 20030528; DE 69721245 T2 20031016; EP 0895613 A1 19990210; EP 0895613 B1 20030423; US 5969760 A 19991019
DOCDB simple family (application)
US 9703946 W 19970314; DE 69721245 T 19970314; EP 97915049 A 19970314; US 61514296 A 19960314